Finding the Fourth Proportional to 65,889, 90,926.88 and 37,603.80

Step by Step Solution

1. Step 1: Write the proportion equation
   65,889 : 90,926.88 = 37,603.80 : x
2. Step 2: Convert to fraction form
   65,889/90,926.88 = 37,603.80/x
3. Step 3: Cross multiply
   65,889x = 90,926.88 × 37,603.80
4. Step 4: Simplify right side
   65,889x = 3,419,196,210.14
5. Step 5: Solve for x
   x = 3,419,196,210.14/65,889
6. Step 6: Final answer
   x = 51,893.28